At a Glance
Why Get Tested?
To help detect vitamin B12 deficiency when results of Vitamin B12 testing are equivacol and there is a high clinical suspicion of deficiency; to help diagnose methylmalonic acidaemia, a rare inherited metabolic disorder
When to Get Tested?
If you have a vitamin B12 concentration in the low end of the normal range and/or unexplained symptoms of neuropathy, such as numbness and tingling in the hands and feet or unexplained macrocytosis (large blood cells)
Test Preparation Needed?
You may be instructed to fast before sample collection for this test.